I'm and Won't, They're and Don't: What's a Contraction? (Words Are CATegorical ®)

Hairy, Scary, Ordinary: What Is an Adjective? (Words Are CATegorical ®)

I and You and Don't Forget Who: What Is a Pronoun? (Words Are CATegorical ®)

-Ful and -Less, -Er and -Ness: What Is a Suffix? (Words Are CATegorical ®)

Dearly, Nearly, Insincerely: What Is an Adverb? (Words Are CATegorical ®)

Under, Over, By the Clover: What Is a Preposition? (Words Are CATegorical ®)

A Mink, a Fink, a Skating Rink: What Is a Noun? (Words Are CATegorical ®)

Pre- and Re-, Mis- and Dis-: What Is a Prefix? (Words Are CATegorical ®)

How Long or How Wide?: A Measuring Guide (Math Is CATegorical ®)

Feet and Puppies, Thieves and Guppies: What Are Irregular Plurals? (Words Are CATegorical ®)

On the Scale, a Weighty Tale (Math Is CATegorical ®)